(2:00PM - 1/19/20) Post storm wrap up regarding the recent Fri-Sat, January 17-18th winter storm that affected the state. During this period nearly every weather hazard occurred across the state...rain, flooding, high winds, snow, sleet and ice.
A mash-up of several precipitation types occurred across much of the state during this period. Across Northern Illinois...Precipitation started as snow Friday afternoon and continued for a several hour period into Friday evening, before transitioning to a brief mix and then freezing rain for a couple hour period Friday night. Precipitation then transitioned to rain very late Friday night/very early Saturday morning for a period, before transitioning back to a brief mix/snow and then ending. Across Central Illinois...Precipitation started as a brief mix Friday afternoon, before transitioning to a several hour period of freezing rain into Friday evening. Precipitation then transitioned to rain Friday evening, continuing into Friday night, before ending. Across Southern Illinois...Precipitation started as a brief mix Friday afternoon, before quickly changing to rain, and continuing through Friday night, before ending Saturday morning.
Final storm snow/sleet totals of 2-6" occurred across Northern Illinois, with tapering amounts of a dusting to 3" across Central Illinois. Ice accumulation of 0.05-0.25" were common across a good portion of Northern and Central Illinois. Widespread precipitation/rain totals of 1-2.50" occurred across much of Central and Southern Illinois, which lead to some low end flooding for some areas.
Below is a map representation of final snow and rain totals across the state and adjacent areas.
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